Has your friend read up on fybro?-
so maybe to understand it better.

I don't have fybro - I have TOS and some myofascial pain & triggerpoints at times- so similar in some ways.
I do have concentration problems and short term memory issues at times during flare ups.
the old brain fog thing - then at other times brain/memory/attention span is fine - but will get bogged down after much heavy concentration.

It sounds like you are coping well - maybe the friend just thinks it will change things.
If she hasn't read up on it {fybro} that might be a good thing if she is willing to do that.